I need help! It's an exponent puzzle and it's due today!

Solve the system of equations y= 3/2 - 1, -x+ y =-3

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte